2019 Mercedes-Benz GLS-Class
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2019 Mercedes-Benz GLS-Class is sold in the U.S. with gasoline power. The EPA lists 3 configurations for this model year, with combined economy from 15 to 18 MPG and an estimated annual fuel cost of $4,450 to $5,300 at 15,000 miles.
Key numbers
| Model year | 2019 |
|---|---|
| Vehicle class | Standard Sport Utility Vehicle 4WD |
| Fuel type(s) | Gasoline |
| Combined economy | 15-18 MPG |
| Best / worst combined | 18 / 15 MPG |
| Annual fuel cost | $4,450-$5,300 |
| Tailpipe CO₂ | 488-601 g/mi |
| EPA smog rating | 3-3 / 10 |
What it costs to fuel
Across its configurations, the 2019 GLS-Class costs about $4,450 to $5,300 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $4,917. Over five years that is about $24,583 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, this GLS-Class configuration spends about $10,750 more on fuel over five years.
For context, the average combined economy of standard sport utility vehicle 4wd in this dataset is about 23 MPG. The GLS-Class sits roughly 6 MPG below that mark at its midpoint, making it thirstier than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| GLS450 4matic | 3.0L 6-cyl turbo | 4-Wheel | Automatic | Gasoline | 18 MPG | $4,450 |
| GLS550 4matic | 4.7L 8-cyl turbo | 4-Wheel | Automatic | Gasoline | 16 MPG | $5,000 |
| AMG GLS63 | 5.5L 8-cyl turbo | 4-Wheel | Automatic | Gasoline | 15 MPG | $5,300 |
Emissions, safety and size
The 2019 GLS-Class records tailpipe CO₂ of 488-601 g/mi, an EPA smog rating of 3-3 out of 10. The EPA classifies it as standard sport utility vehicle 4wd.
Compare this car
Open the comparison tool to line this 2019 GLS-Class up against any other vehicle in the database, or jump to other years and trims from the 2019 Mercedes-Benz GLS-Class overview.
← All Mercedes-Benz GLS-Class years ← All Mercedes-Benz models
Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.